/Engine/Source/Runtime/GeometryCore/Public/CompGeom/Delaunay3.h
Compute a 3D Delaunay triangulation. Note this clears any previously-held triangulation data, and triangulates the passed-in vertices from scratch
false if triangulation failed
bool Triangulate ( [TArrayView](API\Runtime\Core\Containers\TArrayView)< const [TVector](API\Runtime\Core\Math\TVector)< float >> Vertices )